1 00:00:10,614 --> 00:00:15,294 Speaker 1: You're listening to a Muma Mea podcast. Mamma Mea acknowledges 2 00:00:15,334 --> 00:00:18,174 Speaker 1: the traditional owners of land and waters that this podcast 3 00:00:18,214 --> 00:00:18,934 Speaker 1: is recorded on. 4 00:00:21,934 --> 00:00:22,134 Speaker 2: Hi. 5 00:00:22,254 --> 00:00:25,334 Speaker 1: I'm Claire Murphy. This is Mumma MIA's daily news podcast, 6 00:00:25,374 --> 00:00:29,054 Speaker 1: The Quickie. Just over a week ago, TV doctor Michael 7 00:00:29,094 --> 00:00:31,974 Speaker 1: Moseley went for a walk. He was on holiday on 8 00:00:31,974 --> 00:00:35,014 Speaker 1: the Greek island of Simmy, which had been experiencing temperatures 9 00:00:35,014 --> 00:00:37,694 Speaker 1: in the high thirties and low forties, and as of 10 00:00:37,774 --> 00:00:40,654 Speaker 1: us putting this episode of The Quikie together, the island 11 00:00:40,774 --> 00:00:44,854 Speaker 1: is under an orange warning for extreme high temperatures. Doctor 12 00:00:44,894 --> 00:00:47,934 Speaker 1: Moseley would not return from that walk. An experts say 13 00:00:47,974 --> 00:00:50,814 Speaker 1: the weather played a big part in that before we 14 00:00:50,854 --> 00:00:52,974 Speaker 1: look into the effects of heat on the human body. 15 00:00:53,134 --> 00:00:55,854 Speaker 1: Here's the laterst from The Quickie newsroom, Friday, June fourteen. 16 00:00:56,614 --> 00:00:59,774 Speaker 1: House prices in Perth, Brisbane and Adelaide are growing at 17 00:00:59,814 --> 00:01:02,934 Speaker 1: a faster rate than Melbourne and Sydney, trends suggesting this 18 00:01:03,014 --> 00:01:06,734 Speaker 1: will continue for some time. Home values have risen nationally 19 00:01:06,774 --> 00:01:09,414 Speaker 1: by more than thirty five percent since the pandemic star 20 00:01:09,814 --> 00:01:13,134 Speaker 1: in twenty twenty, but that growth hasn't been spread evenly 21 00:01:13,174 --> 00:01:16,654 Speaker 1: across the markets. According to data from core Logic, Perth, 22 00:01:16,694 --> 00:01:20,734 Speaker 1: Brisbane and Adelaide have vastly outpaced gains posted in other 23 00:01:20,854 --> 00:01:25,734 Speaker 1: urban centers including Hobart, Melbourne, Canberra, Darwin and Sydney, with Perth, 24 00:01:25,774 --> 00:01:28,894 Speaker 1: for example, posting a sixty two point six percent increase 25 00:01:28,894 --> 00:01:31,694 Speaker 1: in property values at the same time growth was at 26 00:01:31,734 --> 00:01:35,214 Speaker 1: eleven point two percent in Melbourne. Experts say prices are 27 00:01:35,254 --> 00:01:38,174 Speaker 1: playing catch up in cities that started at a lower base, 28 00:01:38,334 --> 00:01:41,894 Speaker 1: while others accelerated over the past decade, while some cities 29 00:01:41,974 --> 00:01:44,254 Speaker 1: managed to build more homes than others, keeping a lid 30 00:01:44,294 --> 00:01:47,934 Speaker 1: on price growth. Australia has seen a huge increase in 31 00:01:47,974 --> 00:01:50,894 Speaker 1: the illegal importation of tobacco pouches in the wake of 32 00:01:50,934 --> 00:01:54,094 Speaker 1: the government's ban on single use vapes. The pouches, which 33 00:01:54,174 --> 00:01:56,414 Speaker 1: generally come in tins that look like they could also 34 00:01:56,494 --> 00:01:59,934 Speaker 1: hold lollies and of various flavors like apple, cherry and lemon, 35 00:02:00,254 --> 00:02:03,614 Speaker 1: are designed to attract a younger market, just as vapes did. 36 00:02:03,974 --> 00:02:07,494 Speaker 1: The pouches usually contain synthetic nicotine and are marketed as 37 00:02:07,494 --> 00:02:10,614 Speaker 1: a way to help people wean themselves off fhapes or cigarettes, 38 00:02:10,854 --> 00:02:13,494 Speaker 1: although the TGA says there's no strong evidence that they 39 00:02:13,534 --> 00:02:16,014 Speaker 1: do so. It is against the law to sell, by 40 00:02:16,174 --> 00:02:19,214 Speaker 1: or advertise nicotine pouches in Australia, but it's not the 41 00:02:19,254 --> 00:02:22,454 Speaker 1: same around the world, with influencers pushing the drug through 42 00:02:22,494 --> 00:02:25,854 Speaker 1: their social media platforms. Many say it is easy to 43 00:02:25,894 --> 00:02:29,294 Speaker 1: obtain tobacco pouches here in Australia, either by buying them 44 00:02:29,334 --> 00:02:32,974 Speaker 1: online or through tobacconists who are selling them illegally. The 45 00:02:33,134 --> 00:02:35,894 Speaker 1: U s. Supreme Court has rejected a bid by anti 46 00:02:35,934 --> 00:02:39,654 Speaker 1: abortion groups and doctors to restrict access to the abortion pill, 47 00:02:39,934 --> 00:02:43,334 Speaker 1: giving President Joe Biden's administration of victory in their efforts 48 00:02:43,374 --> 00:02:46,734 Speaker 1: to protect access to the drug two years after ending 49 00:02:46,774 --> 00:02:49,654 Speaker 1: the recognition of a constitutional right to have an abortion. 50 00:02:50,054 --> 00:02:53,054 Speaker 1: The Court ruled in a unanimous decision to overturn a 51 00:02:53,054 --> 00:02:56,494 Speaker 1: lower court decision to roll back FDA steps in twenty 52 00:02:56,534 --> 00:02:59,254 Speaker 1: sixteen and twenty twenty one easing how the drug is 53 00:02:59,294 --> 00:03:02,414 Speaker 1: prescribed and distributed. The pill is used in more than 54 00:03:02,454 --> 00:03:05,654 Speaker 1: sixty percent of US abortions. The court ruled that those 55 00:03:05,694 --> 00:03:09,214 Speaker 1: behind the lawsuit challenging the drug lacked the necessary legal 56 00:03:09,254 --> 00:03:12,494 Speaker 1: step to pursue the case, which required them to show 57 00:03:12,534 --> 00:03:14,574 Speaker 1: that they have been harmed in some way, which can 58 00:03:14,614 --> 00:03:18,054 Speaker 1: then be traced back to the FDA. Matilda star Sam 59 00:03:18,134 --> 00:03:21,134 Speaker 1: Kerr has scared her UK fans, starring in a video 60 00:03:21,174 --> 00:03:22,974 Speaker 1: that made it look like the thirty year old was 61 00:03:23,054 --> 00:03:26,214 Speaker 1: leaving her club. Chelsea posted the video on their social 62 00:03:26,254 --> 00:03:29,454 Speaker 1: media showing ker looking sad, saying how much she's loved 63 00:03:29,494 --> 00:03:32,374 Speaker 1: the club and how it felt like home, posting another 64 00:03:32,454 --> 00:03:35,174 Speaker 1: video not long after of her watching that video, saying 65 00:03:35,294 --> 00:03:37,654 Speaker 1: as if she'd end her run on ninety nine goals. 66 00:03:38,014 --> 00:03:40,734 Speaker 1: Kerr has re signed with the club until twenty twenty six, 67 00:03:40,774 --> 00:03:44,774 Speaker 1: where she's played since twenty nineteen. She's still currently sidelined 68 00:03:44,854 --> 00:03:47,934 Speaker 1: recovering from an acltair she suffered on a training camp 69 00:03:47,974 --> 00:03:51,414 Speaker 1: back in January. That's your latest news headlines. Next, did 70 00:03:51,494 --> 00:03:55,214 Speaker 1: extreme heat lead to the death of TV doctor Michael Moseley. 71 00:03:55,534 --> 00:03:58,254 Speaker 1: We look into exactly what high temperatures do to us 72 00:03:58,294 --> 00:04:00,494 Speaker 1: when we're exposed to them, and how we can make 73 00:04:00,534 --> 00:04:15,174 Speaker 1: sure we avoid putting ourselves at risk too. Doctor Michael 74 00:04:15,214 --> 00:04:18,574 Speaker 1: Moseley was well known to TV audiences both at home 75 00:04:18,574 --> 00:04:21,454 Speaker 1: in the UK and here in Australia as host of 76 00:04:21,494 --> 00:04:24,374 Speaker 1: shows like SBS's Australia's Health Revolution. 77 00:04:24,854 --> 00:04:28,174 Speaker 2: There is one disease spreading right across his country that 78 00:04:28,254 --> 00:04:30,974 Speaker 2: will leave a mark on the lives of millions of 79 00:04:31,014 --> 00:04:33,574 Speaker 2: Australians for generations to come. 80 00:04:34,654 --> 00:04:36,854 Speaker 1: He was known for testing out health theories on his 81 00:04:36,934 --> 00:04:41,414 Speaker 1: own body, ingesting tapeworms, injecting snake venom, and placing leeches 82 00:04:41,414 --> 00:04:43,654 Speaker 1: on his skin, all in the name of health science. 83 00:04:44,294 --> 00:04:46,374 Speaker 1: But while he had a clear understanding of how the 84 00:04:46,454 --> 00:04:49,534 Speaker 1: human body worked and the impacts of certain stresses on it, 85 00:04:50,014 --> 00:04:51,974 Speaker 1: what he didn't realize when he set out for a 86 00:04:52,014 --> 00:04:54,654 Speaker 1: walk while on holiday in Greece was that told the 87 00:04:54,734 --> 00:05:01,654 Speaker 1: island's current temperatures would take at about one point thirty pm, 88 00:05:01,694 --> 00:05:04,414 Speaker 1: Michael left the beachside accommodation he was enjoying with his 89 00:05:04,454 --> 00:05:07,134 Speaker 1: wife Claire to set out on that walk that should 90 00:05:07,134 --> 00:05:10,134 Speaker 1: have only been for just over a kilometer. He was 91 00:05:10,134 --> 00:05:14,254 Speaker 1: spotted on CCTV footage outside cafes and restaurants before he 92 00:05:14,334 --> 00:05:17,294 Speaker 1: walked out of town. When his wife returned to their 93 00:05:17,294 --> 00:05:20,894 Speaker 1: accommodation later that night and found he hadn't returned, she 94 00:05:21,054 --> 00:05:23,734 Speaker 1: raised the alarm and a five day frantic search for 95 00:05:23,774 --> 00:05:27,974 Speaker 1: the doctor began. He was found by accident a Greek 96 00:05:28,054 --> 00:05:30,254 Speaker 1: TV crew were filming with the mare, and when they 97 00:05:30,294 --> 00:05:33,014 Speaker 1: returned to Simi to check the footage, they spotted a 98 00:05:33,014 --> 00:05:35,454 Speaker 1: man's body lying near a fence in the rocky terrain 99 00:05:35,614 --> 00:05:39,054 Speaker 1: near a beachside bar and cafe. The sixty seven year 100 00:05:39,094 --> 00:05:41,894 Speaker 1: old is believed to have died just over two hours 101 00:05:41,934 --> 00:05:44,374 Speaker 1: into his walk that day. He took a wrong turn 102 00:05:44,534 --> 00:05:48,054 Speaker 1: that took him through difficult terrain in scorchingly high temperatures. 103 00:05:48,574 --> 00:05:52,254 Speaker 1: CCTV shows and exhausted Moseley struggling to head down the 104 00:05:52,294 --> 00:05:56,414 Speaker 1: slope before he drops from sight of the camera. Investigators 105 00:05:56,414 --> 00:05:59,974 Speaker 1: say he seemed confused, leaving his belongings further down the hill, 106 00:06:00,254 --> 00:06:02,694 Speaker 1: only to climb up and then returned down before either 107 00:06:02,734 --> 00:06:06,254 Speaker 1: sitting down or collapsing. He was found lying face up 108 00:06:06,294 --> 00:06:09,174 Speaker 1: with his head on a rock. The autopsy shows he 109 00:06:09,214 --> 00:06:12,174 Speaker 1: died of natural causes, with no injuries to suggest he'd 110 00:06:12,174 --> 00:06:15,254 Speaker 1: met foul play. It's believed doctor Mosley may have been 111 00:06:15,294 --> 00:06:18,974 Speaker 1: suffering from extreme heatstroke, a condition that can take a 112 00:06:19,094 --> 00:06:24,814 Speaker 1: huge toll on the human body. Someone who knows what 113 00:06:24,894 --> 00:06:27,374 Speaker 1: heat can do to someone is former head coach of 114 00:06:27,414 --> 00:06:31,694 Speaker 1: the Australian Institute of Sport Cricket Academy Andrew Sincock twenty 115 00:06:31,774 --> 00:06:34,254 Speaker 1: years ago, when his son Paul was twenty six years old, 116 00:06:34,534 --> 00:06:37,454 Speaker 1: his wife Evon came home to find Paul on the floor. 117 00:06:37,814 --> 00:06:40,134 Speaker 2: He had got home from his cricket match and he's 118 00:06:40,534 --> 00:06:45,374 Speaker 2: lying on a floor under an air conditioner and not 119 00:06:45,734 --> 00:06:49,134 Speaker 2: very responsive. And Evon called me and said quick, we've 120 00:06:49,174 --> 00:06:50,014 Speaker 2: got to do something. 121 00:06:50,574 --> 00:06:53,454 Speaker 1: Andrew says they found out later that Paul had experienced 122 00:06:53,534 --> 00:06:56,414 Speaker 1: obvious symptoms of heatstroke before he got home. 123 00:06:56,894 --> 00:06:59,814 Speaker 2: What we found was that he'd played his cricket match. 124 00:07:00,134 --> 00:07:02,094 Speaker 2: At the end of the game, he lay on the 125 00:07:02,134 --> 00:07:05,654 Speaker 2: concrete floor of the change round. Everybody had left because 126 00:07:05,694 --> 00:07:07,654 Speaker 2: he'd said, I'll be all right, I'm just calling down. 127 00:07:07,934 --> 00:07:10,574 Speaker 2: He just couldn't get his body call. He got home 128 00:07:10,654 --> 00:07:13,214 Speaker 2: to our house not far away, two three kilometers from 129 00:07:13,214 --> 00:07:16,814 Speaker 2: where he was playing, and he was in terrible strife. 130 00:07:16,854 --> 00:07:19,974 Speaker 2: So Yvonne and I just picked him up against his 131 00:07:20,134 --> 00:07:22,814 Speaker 2: will and cutted him off to emergency. 132 00:07:23,294 --> 00:07:25,654 Speaker 1: When they got him to the hospital, things continued to 133 00:07:25,694 --> 00:07:28,334 Speaker 1: go downhill, and it was then they found out just 134 00:07:28,414 --> 00:07:30,454 Speaker 1: how close they'd come to losing their son. 135 00:07:31,014 --> 00:07:34,694 Speaker 2: We knew something was desperately wrong because he was starting 136 00:07:34,734 --> 00:07:38,934 Speaker 2: to act or not respond properly. We said to the doctor, 137 00:07:38,974 --> 00:07:43,174 Speaker 2: we suspect that he hasn't drunk enough fluid, at which 138 00:07:43,254 --> 00:07:45,694 Speaker 2: point he was tested and the word came back, you're 139 00:07:45,814 --> 00:07:49,134 Speaker 2: very lucky if you wouldn't want to have been much later, 140 00:07:49,454 --> 00:07:51,734 Speaker 2: because his blood was like trickle and as soon as 141 00:07:51,774 --> 00:07:54,934 Speaker 2: you get into that state, of course, nothing's functioning correctly. 142 00:07:55,134 --> 00:07:58,174 Speaker 2: It was really dire. If we had been an hour 143 00:07:58,294 --> 00:08:03,974 Speaker 2: or two later, death was definitely possible or severe and 144 00:08:04,134 --> 00:08:07,334 Speaker 2: permanent brain and bodily function injury. 145 00:08:08,174 --> 00:08:11,414 Speaker 1: Luckily, they caught Paul's stroke in time and they quickly 146 00:08:11,454 --> 00:08:12,454 Speaker 1: treated the issue. 147 00:08:12,654 --> 00:08:14,894 Speaker 2: When you're on a drip, you know how the strips 148 00:08:14,974 --> 00:08:17,214 Speaker 2: into your arm. This wasn't dripping into his arm. This 149 00:08:17,414 --> 00:08:20,374 Speaker 2: was running into his arm. The amount of fluid they 150 00:08:20,414 --> 00:08:23,214 Speaker 2: put into him, we don't know. They just had to 151 00:08:23,214 --> 00:08:25,214 Speaker 2: get a lot of fluid in very very quickly. 152 00:08:28,374 --> 00:08:31,294 Speaker 1: Andrew was a state cricketer himself, playing for South Australia 153 00:08:31,334 --> 00:08:34,854 Speaker 1: across the country in tough summer conditions, especially when they 154 00:08:34,894 --> 00:08:35,694 Speaker 1: headed up north. 155 00:08:36,134 --> 00:08:38,694 Speaker 2: When you're a fast bowler and it's a hot day 156 00:08:38,814 --> 00:08:41,534 Speaker 2: and you've got spots before your eyes and you're cold, 157 00:08:41,614 --> 00:08:43,854 Speaker 2: but it's a hot day, that means you've got some 158 00:08:43,974 --> 00:08:47,654 Speaker 2: heat stress. Therefore, get some fluid into you. An older 159 00:08:47,654 --> 00:08:50,814 Speaker 2: State cricketer came to me prior to my first game 160 00:08:51,054 --> 00:08:53,974 Speaker 2: in Brisbane at the Gabba. He said, now, this is 161 00:08:54,014 --> 00:08:55,694 Speaker 2: going to be a shock to your body if you've 162 00:08:55,694 --> 00:08:58,334 Speaker 2: not done it. So the training day prior to the game, 163 00:08:58,854 --> 00:09:02,734 Speaker 2: I can believe it. After about twenty minutes of activity 164 00:09:02,934 --> 00:09:06,374 Speaker 2: and then bowling, perspiration was pouring off the end of 165 00:09:06,374 --> 00:09:08,974 Speaker 2: my fingers to the point where I couldn't hold the ball. 166 00:09:09,174 --> 00:09:11,814 Speaker 2: There was nothing dry on me at all, and I 167 00:09:11,854 --> 00:09:12,894 Speaker 2: thought this is interesting. 168 00:09:13,814 --> 00:09:16,534 Speaker 1: When he was Head Cricket Academy coach of the AIS, 169 00:09:16,654 --> 00:09:19,454 Speaker 1: training the likes of sporting stars like Shane Warn, Justin 170 00:09:19,534 --> 00:09:23,014 Speaker 1: Langer and Greg Blewett, they conducted an intense study to 171 00:09:23,094 --> 00:09:26,854 Speaker 1: track these athletes while understressing the heat, finding that they 172 00:09:26,894 --> 00:09:31,134 Speaker 1: needed to ensure they were hydrated before, during and after the. 173 00:09:31,094 --> 00:09:34,614 Speaker 2: Match every ten to twelve minutes. Drink one hundred mili 174 00:09:34,894 --> 00:09:39,574 Speaker 2: of water. Don't drink big drinks and drown yourself because 175 00:09:39,574 --> 00:09:42,934 Speaker 2: your body will just release that. You have to drink 176 00:09:42,974 --> 00:09:46,974 Speaker 2: small amounts regularly, which is what you see on television 177 00:09:47,334 --> 00:09:51,054 Speaker 2: of foot floor cricket other games where somebody will run out. 178 00:09:51,254 --> 00:09:53,374 Speaker 2: You have a swig of water, and then that happens 179 00:09:53,374 --> 00:09:54,454 Speaker 2: again in ten minutes time. 180 00:09:57,974 --> 00:10:00,614 Speaker 1: So what is exactly happening to your body when it 181 00:10:00,694 --> 00:10:05,094 Speaker 1: gets too hot? Fergus O'Connor is a postdoctoral research fellow 182 00:10:05,094 --> 00:10:08,174 Speaker 1: at Griffith University who was co authored an article on 183 00:10:08,214 --> 00:10:11,374 Speaker 1: the effective individual in our mental heat stress variables on 184 00:10:11,454 --> 00:10:16,054 Speaker 1: training and recovery in professional team sport. Fergus, what is 185 00:10:16,254 --> 00:10:18,694 Speaker 1: happening in our bodies when it gets too hot is 186 00:10:18,774 --> 00:10:20,934 Speaker 1: dehydration the thing that will kill us. 187 00:10:21,414 --> 00:10:25,774 Speaker 3: Dehydration is certainly an important factor when it comes to 188 00:10:26,534 --> 00:10:30,494 Speaker 3: our physiological response in the heat, and in particular when 189 00:10:30,494 --> 00:10:33,654 Speaker 3: we think about dehydration. When we are dehydrated, we lose 190 00:10:33,774 --> 00:10:37,654 Speaker 3: an ability to sweat as effectively, and in hot environments, 191 00:10:37,894 --> 00:10:41,574 Speaker 3: sweating is going to be pretty much the only effective 192 00:10:41,974 --> 00:10:45,014 Speaker 3: method of heat loss that the body can generate. 193 00:10:45,254 --> 00:10:46,214 Speaker 4: So if we aren't. 194 00:10:46,014 --> 00:10:49,174 Speaker 3: Able to sweat as effectively, we will store more body 195 00:10:49,214 --> 00:10:51,054 Speaker 3: heat and then we will get hotter. 196 00:10:51,254 --> 00:10:53,294 Speaker 4: Our heart will have to work harder. 197 00:10:53,254 --> 00:10:56,334 Speaker 3: To try and offload the heat by sending more blood 198 00:10:56,414 --> 00:10:59,574 Speaker 3: to the skin, and basically in a cascade of events 199 00:10:59,774 --> 00:11:03,494 Speaker 3: that dehydration certainly plays a very important part within we 200 00:11:03,534 --> 00:11:06,254 Speaker 3: can have heat related health complications. 201 00:11:06,694 --> 00:11:08,374 Speaker 1: Well, can we talk about that for a moment. What 202 00:11:08,454 --> 00:11:12,494 Speaker 1: sort of symptoms might we be experiencing if we're heading 203 00:11:12,534 --> 00:11:15,294 Speaker 1: into the territory of heat exhaustion, and what is the 204 00:11:15,334 --> 00:11:18,134 Speaker 1: difference between heat exhaustion and heat stroke. 205 00:11:18,854 --> 00:11:21,534 Speaker 3: There's two types of heat stroke that we often talk 206 00:11:21,534 --> 00:11:25,094 Speaker 3: about in the thermophysiological world. There's classical heat stroke and 207 00:11:25,134 --> 00:11:29,334 Speaker 3: then there's exertional heat stroke. So exertional heat stroke generally occurs, 208 00:11:29,494 --> 00:11:31,894 Speaker 3: as the name would suggest, during exertion, and that can 209 00:11:31,974 --> 00:11:36,934 Speaker 3: be through sporting endeavors or also just through occupational endeavors 210 00:11:37,054 --> 00:11:39,894 Speaker 3: things like that. And when we talk about classical heat stroke, 211 00:11:39,934 --> 00:11:43,614 Speaker 3: that's more so just when we're storing more body heat, 212 00:11:43,974 --> 00:11:44,854 Speaker 3: then we're. 213 00:11:44,974 --> 00:11:48,214 Speaker 4: Able to offset and lose and our core body temperature 214 00:11:48,374 --> 00:11:49,174 Speaker 4: continue to rise. 215 00:11:49,254 --> 00:11:52,334 Speaker 3: Now, heat stroke we talk about as a clinical condition 216 00:11:52,574 --> 00:11:55,854 Speaker 3: where our body temperature will be above generally accepted limit 217 00:11:55,934 --> 00:11:58,574 Speaker 3: is forty point five degrees for heat stroke. So that's 218 00:11:58,574 --> 00:12:01,574 Speaker 3: getting pretty hot. I'm sure most people would have heard 219 00:12:01,614 --> 00:12:04,134 Speaker 3: the old rule of thumb is the best way to 220 00:12:04,134 --> 00:12:04,374 Speaker 3: put it. 221 00:12:04,414 --> 00:12:05,574 Speaker 4: Our body temperature. 222 00:12:05,214 --> 00:12:08,294 Speaker 3: Generally sits around thirty seven degrees, So once we're getting 223 00:12:08,334 --> 00:12:11,294 Speaker 3: up to around forty points and above there, that's where 224 00:12:11,494 --> 00:12:14,294 Speaker 3: catastrophic consequences can sort of develop. 225 00:12:14,734 --> 00:12:17,814 Speaker 1: Can we talk about what those catastrophic consequences are? What's 226 00:12:17,894 --> 00:12:20,014 Speaker 1: worst case scenario when we're in heat stroke? 227 00:12:20,614 --> 00:12:24,174 Speaker 3: Absolute worst case scenario is death, to put it bluntly, 228 00:12:24,414 --> 00:12:27,134 Speaker 3: but once we start getting up above forty point five 229 00:12:27,454 --> 00:12:30,734 Speaker 3: in our organs will start to shut down, cells will die, 230 00:12:31,134 --> 00:12:33,934 Speaker 3: and yeah, as I say, worst case scenario will be death. 231 00:12:34,454 --> 00:12:36,654 Speaker 3: It is important to note that a lot of heat 232 00:12:36,654 --> 00:12:42,094 Speaker 3: related health complications are not because of high body temperatures 233 00:12:42,134 --> 00:12:42,814 Speaker 3: per se. 234 00:12:42,934 --> 00:12:45,814 Speaker 4: They may be of cardiovascular origin, where the heart is 235 00:12:45,854 --> 00:12:47,694 Speaker 4: having to work particularly. 236 00:12:47,174 --> 00:12:51,494 Speaker 3: Hard to try and promote body cooling, sending blood to 237 00:12:51,534 --> 00:12:55,094 Speaker 3: the skin and promote sweating as well. So a lot 238 00:12:55,134 --> 00:12:57,494 Speaker 3: of the time when we see heat related deaths, they 239 00:12:57,494 --> 00:13:01,294 Speaker 3: will be of cardiovascular origin. And that's more common than 240 00:13:01,734 --> 00:13:05,614 Speaker 3: excessively high body temperatures. I guess of particular importance. As 241 00:13:05,614 --> 00:13:10,174 Speaker 3: we age, we lose an ability to effectively thermore so 242 00:13:10,294 --> 00:13:13,174 Speaker 3: older adults and in particular those above sixty five years 243 00:13:13,214 --> 00:13:17,294 Speaker 3: of age are at greatest susceptibility to heat related health complications. 244 00:13:17,854 --> 00:13:20,054 Speaker 1: Fergus. A lot of the conversation around the death of 245 00:13:20,094 --> 00:13:23,734 Speaker 1: doctor Michael Moseley has been about the choices that he 246 00:13:23,854 --> 00:13:27,414 Speaker 1: made whilst on his walk that day, about heat potentially 247 00:13:27,414 --> 00:13:30,654 Speaker 1: maybe getting lost confused about where he was. There's been 248 00:13:30,694 --> 00:13:33,854 Speaker 1: discussions about where he dropped his belongings as opposed to 249 00:13:33,934 --> 00:13:37,094 Speaker 1: where he was headed and how close he was to 250 00:13:37,574 --> 00:13:40,174 Speaker 1: being able to seek help but then seem to have 251 00:13:40,374 --> 00:13:44,054 Speaker 1: maybe turned back. But when you're in that moment where 252 00:13:44,094 --> 00:13:46,854 Speaker 1: heat is really starting to impact you, it can actually 253 00:13:46,894 --> 00:13:48,534 Speaker 1: impact your brain as well, can't it. 254 00:13:48,934 --> 00:13:49,174 Speaker 4: Yeah. 255 00:13:49,174 --> 00:13:52,654 Speaker 3: Absolutely, It's not only physological processes that will be impaired, 256 00:13:52,654 --> 00:13:56,534 Speaker 3: but also cognitive processes as well, and especially once you know, 257 00:13:56,574 --> 00:14:00,454 Speaker 3: you start getting those extremely high body temperatures and approaching 258 00:14:00,534 --> 00:14:05,214 Speaker 3: and exceeding forty degrees, cognitive processes and cognitive functioning will 259 00:14:05,254 --> 00:14:09,374 Speaker 3: be severely declined. And that's why in heat stroke situation 260 00:14:09,694 --> 00:14:11,734 Speaker 3: a lot of the time that person, through a lack 261 00:14:11,734 --> 00:14:15,974 Speaker 3: of cognition, may not be able to effectively implement a 262 00:14:15,974 --> 00:14:19,534 Speaker 3: cooling intervention on themselves. And the most effective cooling intervention 263 00:14:20,134 --> 00:14:23,974 Speaker 3: is whole body water immersion, so rapidly lower core body temperature. 264 00:14:24,174 --> 00:14:26,654 Speaker 3: And obviously, you know, if we're out hiking in the 265 00:14:26,654 --> 00:14:29,014 Speaker 3: bush or whatever it may be, that's not going to 266 00:14:29,054 --> 00:14:30,454 Speaker 3: be likely possible. 267 00:14:30,894 --> 00:14:33,254 Speaker 1: There's also some mention that maybe he sat down and 268 00:14:33,254 --> 00:14:36,414 Speaker 1: then passed out. You mentioned that the heart is having 269 00:14:36,454 --> 00:14:38,334 Speaker 1: to work a lot harder to try and get that 270 00:14:38,414 --> 00:14:40,374 Speaker 1: blood to the surface and get rid of some of 271 00:14:40,374 --> 00:14:43,654 Speaker 1: that heat. Would that also impact your blood pressure? Would 272 00:14:43,654 --> 00:14:46,694 Speaker 1: that end with you maybe fainting or passing out? 273 00:14:47,014 --> 00:14:50,014 Speaker 3: Definitely, there was potential that it could have been a 274 00:14:50,054 --> 00:14:53,174 Speaker 3: heat induced hypertension event. And we know because of the 275 00:14:53,214 --> 00:14:55,854 Speaker 3: effect on blood pressure, we will have a significant reduction 276 00:14:55,974 --> 00:15:00,374 Speaker 3: in blood pressure and that could have contributed to state 277 00:15:00,414 --> 00:15:00,974 Speaker 3: of delirium. 278 00:15:01,054 --> 00:15:03,974 Speaker 4: I'm sure people would know when they experience I. 279 00:15:03,974 --> 00:15:06,894 Speaker 3: Guess, episodes of low blood pressure that they may not 280 00:15:07,014 --> 00:15:09,614 Speaker 3: be able to think as clearly as they otherwise would be. 281 00:15:09,774 --> 00:15:13,254 Speaker 3: And we often see that in heat events, and as 282 00:15:13,294 --> 00:15:15,134 Speaker 3: I sort of touched on before, a lot of heat 283 00:15:15,174 --> 00:15:19,454 Speaker 3: related health complications and not from excessive increases in body temperature, 284 00:15:19,454 --> 00:15:22,174 Speaker 3: but they may be you know, from postural changes and 285 00:15:22,174 --> 00:15:24,254 Speaker 3: that sort of thing where people will be in the home, 286 00:15:24,334 --> 00:15:26,774 Speaker 3: they'll be laying down their bed under a ceiling fan 287 00:15:26,894 --> 00:15:28,854 Speaker 3: or something like that, or sitting on a chair in 288 00:15:28,894 --> 00:15:31,494 Speaker 3: front of a pedestal fan if they don't have access 289 00:15:31,494 --> 00:15:33,614 Speaker 3: to air conditioning, They go to stand up and they 290 00:15:33,654 --> 00:15:36,454 Speaker 3: immediately feel lightheaded, and that's because of a big blood 291 00:15:36,494 --> 00:15:39,134 Speaker 3: pressure shift. And then when they go to stand up, 292 00:15:39,174 --> 00:15:41,814 Speaker 3: they have a heat syncopeda event and they will pass 293 00:15:41,854 --> 00:15:43,134 Speaker 3: out and faint. 294 00:15:43,454 --> 00:15:46,054 Speaker 1: I guess what is also been called into question here 295 00:15:46,134 --> 00:15:48,934 Speaker 1: is for people who live in a place which generally 296 00:15:48,974 --> 00:15:50,814 Speaker 1: has a quite cool climate and then they go on 297 00:15:50,854 --> 00:15:53,454 Speaker 1: holiday to somewhere where it's quite hot and maybe even 298 00:15:53,534 --> 00:15:56,494 Speaker 1: quite humid. Does it take the body a moment to 299 00:15:56,574 --> 00:16:00,294 Speaker 1: adjust when it comes to all of a sudden finding 300 00:16:00,374 --> 00:16:03,174 Speaker 1: itself in a warmer climate. Say if you are an 301 00:16:03,214 --> 00:16:05,974 Speaker 1: athlete that's traveling to compete in their sport or someone 302 00:16:06,014 --> 00:16:07,614 Speaker 1: who's just taking a holiday. 303 00:16:07,654 --> 00:16:11,014 Speaker 3: Yeah, absolutely. I guess there's two ways that people can 304 00:16:11,054 --> 00:16:14,534 Speaker 3: adapt to an environment. The first way is a climatization, 305 00:16:14,694 --> 00:16:17,054 Speaker 3: and that's just exposure to the natural environment. And then 306 00:16:17,054 --> 00:16:21,454 Speaker 3: there's acclamation as well. Acclamation is done through artificial environments, 307 00:16:21,454 --> 00:16:24,454 Speaker 3: and it is something that for people living in cooler 308 00:16:24,454 --> 00:16:27,894 Speaker 3: climates before they travel to the hot climate. Heat acclamation 309 00:16:28,334 --> 00:16:32,094 Speaker 3: is relatively simple. It's just continual exposure to a hot environment. 310 00:16:32,374 --> 00:16:35,894 Speaker 3: Within five to seven days. We can garner adaptation within 311 00:16:36,134 --> 00:16:40,694 Speaker 3: fourteen days. Full acclimation to environmental condition is possible. Those 312 00:16:40,734 --> 00:16:44,774 Speaker 3: adaptations that we talk about in heat acclamation or acclimatization 313 00:16:45,134 --> 00:16:49,934 Speaker 3: are basically earlier onset of sweating and increased sweat rates, 314 00:16:50,094 --> 00:16:53,014 Speaker 3: and that means we're able to lose body heat quicker 315 00:16:53,254 --> 00:16:55,414 Speaker 3: and more efficiently than we otherwise would be. 316 00:16:59,454 --> 00:17:02,134 Speaker 1: The body of doctor Michael Moseley is likely to be 317 00:17:02,214 --> 00:17:05,174 Speaker 1: released to his family sometime today, after which he'll be 318 00:17:05,254 --> 00:17:08,414 Speaker 1: repatriated to the UK, but the results of the full 319 00:17:08,454 --> 00:17:11,294 Speaker 1: post mortem may take some months to be finalized as 320 00:17:11,334 --> 00:17:15,054 Speaker 1: advanced analysis is conducted to find out exactly what happened. 321 00:17:16,174 --> 00:17:19,934 Speaker 1: And while Australia is currently experiencing a cold snap, heat stress, 322 00:17:20,014 --> 00:17:22,694 Speaker 1: the furthest from our minds. If you're heading away for 323 00:17:22,734 --> 00:17:26,054 Speaker 1: a Northern Hemisphere trip to escape this winter weather, remember 324 00:17:26,294 --> 00:17:30,974 Speaker 1: to hydrate. The quickie is produced by me Claire Murphy 325 00:17:31,014 --> 00:17:34,574 Speaker 1: and our executive producer, Callie Rintool, with audio production by 326 00:17:34,614 --> 00:17:35,134 Speaker 1: Tom Lyon.